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About

Hyeong Jae Lee is a pioneering researcher in advanced actuation and drilling technologies for extreme space environments. His work centers on developing piezoelectric actuators and autonomous drilling systems capable of operating under the harsh conditions of planetary exploration—from cryogenic temperatures on the Moon to the icy crust of Europa. Lee’s major contributions include the design of piezoelectric stack actuators with displacement enhancers, which enable precise motion with minimal mass and energy consumption. He is best known for leading the development of Auto-Gopher-II, an autonomous wireline rotary-hammer ultrasonic drill that can penetrate deep into planetary subsurfaces for sample collection. This technology, cited in multiple papers with a total of over 30 citations, represents a critical advancement for NASA’s quest to understand the origins of the Solar System and search for life. Lee’s recent work on piezoelectric motors for cryogenic applications (2024) further expands the operational envelope for mechanisms in dusty, low-temperature environments. His research directly supports future missions requiring low-mass, low-power drilling systems, making him a key figure in the field of space robotics and instrumentation.